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Building technology 1 > concrete > Flashcards

concrete Flashcards

1
Q

what are the basic properties of concrete?

A

fine or course grain, portland or pozzoland, and water

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2
Q

it is a regular concrete with a basic mix of cement, aggregates and water

A

normal strength concrete

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3
Q

what is the ratio in making a normal strength concrete

A

1:2:4

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4
Q

what are the commonly uses of normal strength concrete?

A

pavement, home construction, and buildings that don’t require max. tensile strength

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5
Q

it is the simplest form of concrete

A

plain concrete

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6
Q

this type of concrete has no reinforcement and has the same mix ratio with normal strength concrete

A

plain concrete

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7
Q

what are the common application of plain concrete?

A

pavements and walkways

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8
Q

it has lower density and high water content, and has lightweight aggregates

A

lightweight concrete

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9
Q

what are the common application of lightweight concrete?

A

walls, flooring and plastering

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10
Q

it is made at a manufacturing plant and mixed during travel

A

ready mix concrete

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11
Q

what are the common applications of ready mix concrete?

A

building and roads

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12
Q

it is made of lime and shale-based portland cement

A

polymer concrete

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13
Q

what are the common uses of polymer concrete?

A

swimming pools, sewer structure

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14
Q

recycled glass is added on aggregate

A

glass concrete

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15
Q

what are the common uses of glass concrete?

A

countertops, floors, tiles

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16
Q

it is made with reinforced bar to improve the tensile strength

A

reinforcement concrete

17
Q

what are the common uses of reinforced concrete?

A

beams, columns, suspended slabs, bridges

18
Q

it is more porous which causes water to pass through to groundwater

A

pervious concrete

19
Q

what are the common uses of pervious concrete?

A

walkways, ramps, pavers

20
Q

it has compressive stresses applied to it during production

A

prestressed concrete

21
Q

what are the common uses of prestressed concrete

A

bridges, beams, suspended slabs, roofs

22
Q

what are the two types of prestressed concrete?

A

pre tension and post tension

23
Q

it is molded and curve, and ready to use

A

pre-cast concrete

24
Q

what are the common uses of pre-cast concrete?

A

mass housing, high rise building

25
Q

it contains microscopic air bubbles and relieve internal pressure

A

air entrained concrete

26
Q

it has a comprehensive strength of 6000 lbs./ sq. in.

A

high strength concrete

27
Q

it is the removal of excess water

A

vacuum flooring

28
Q

it is most commonly used in roads and parking lot

A

asphalt concrete

29
Q

it hardens at quicker pace in a span of 48 hours

A

rapid set concrete

30
Q

it is use as a concrete repair and restoration

A

rapid set concrete

31
Q

it is self-consolidating

A

self compacting concrete

32
Q

how many days does the concrete cures?

A

7 days maximum

Building technology 1 (6 decks)

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